114 lines
4.0 KiB
C++
114 lines
4.0 KiB
C++
//=============================================================================
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//
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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//
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//
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// Copyright 2016 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2016 UT-Battelle, LLC.
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// Copyright 2016 Los Alamos National Security.
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//
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// Under the terms of Contract DE-NA0003525 with NTESS,
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// the U.S. Government retains certain rights in this software.
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// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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// Laboratory (LANL), the U.S. Government retains certain rights in
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// this software.
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//
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//=============================================================================
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#include <vtkm/worklet/AverageByKey.h>
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#include <vtkm/Hash.h>
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#include <vtkm/cont/ArrayCopy.h>
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#include <vtkm/cont/ArrayHandleCounting.h>
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#include <vtkm/cont/testing/Testing.h>
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namespace
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{
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static constexpr vtkm::Id NUM_UNIQUE = 100;
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static constexpr vtkm::Id NUM_PER_GROUP = 10;
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static constexpr vtkm::Id ARRAY_SIZE = NUM_UNIQUE * NUM_PER_GROUP;
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template <typename KeyArray, typename ValueArray>
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void CheckAverageByKey(const KeyArray& uniqueKeys, const ValueArray& averagedValues)
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{
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VTKM_IS_ARRAY_HANDLE(KeyArray);
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VTKM_IS_ARRAY_HANDLE(ValueArray);
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using KeyType = typename KeyArray::ValueType;
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VTKM_TEST_ASSERT(uniqueKeys.GetNumberOfValues() == NUM_UNIQUE, "Bad number of keys.");
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VTKM_TEST_ASSERT(averagedValues.GetNumberOfValues() == NUM_UNIQUE, "Bad number of values.");
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// We expect the unique keys to be sorted, and for the test values to be in order.
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auto keyPortal = uniqueKeys.GetPortalConstControl();
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auto valuePortal = averagedValues.GetPortalConstControl();
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for (vtkm::Id index = 0; index < NUM_UNIQUE; ++index)
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{
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VTKM_TEST_ASSERT(keyPortal.Get(index) == TestValue(index % NUM_UNIQUE, KeyType()),
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"Unexpected key.");
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vtkm::FloatDefault expectedAverage = static_cast<vtkm::FloatDefault>(
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NUM_PER_GROUP * ((NUM_PER_GROUP - 1) * NUM_PER_GROUP) / 2 + index);
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VTKM_TEST_ASSERT(test_equal(expectedAverage, valuePortal.Get(index)), "Bad average.");
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}
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}
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template <typename KeyType>
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void TryKeyType(KeyType)
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{
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std::cout << "Testing with " << vtkm::testing::TypeName<KeyType>::Name() << " keys." << std::endl;
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// Create key array
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KeyType keyBuffer[ARRAY_SIZE];
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for (vtkm::Id index = 0; index < ARRAY_SIZE; index++)
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{
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keyBuffer[index] = TestValue(index % NUM_UNIQUE, KeyType());
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}
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vtkm::cont::ArrayHandle<KeyType> keysArray = vtkm::cont::make_ArrayHandle(keyBuffer, ARRAY_SIZE);
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// Create Keys object
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vtkm::cont::ArrayHandle<KeyType> sortedKeys;
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vtkm::cont::ArrayCopy(keysArray, sortedKeys, VTKM_DEFAULT_DEVICE_ADAPTER_TAG());
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vtkm::worklet::Keys<KeyType> keys(sortedKeys, VTKM_DEFAULT_DEVICE_ADAPTER_TAG());
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VTKM_TEST_ASSERT(keys.GetInputRange() == NUM_UNIQUE, "Keys has bad input range.");
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// Create values array
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vtkm::cont::ArrayHandleCounting<vtkm::FloatDefault> valuesArray(0.0f, 1.0f, ARRAY_SIZE);
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std::cout << " Try average with Keys object" << std::endl;
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CheckAverageByKey(
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keys.GetUniqueKeys(),
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vtkm::worklet::AverageByKey::Run(keys, valuesArray, VTKM_DEFAULT_DEVICE_ADAPTER_TAG()));
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std::cout << " Try average with device adapter's reduce by keys" << std::endl;
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vtkm::cont::ArrayHandle<KeyType> outputKeys;
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vtkm::cont::ArrayHandle<vtkm::FloatDefault> outputValues;
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vtkm::worklet::AverageByKey::Run(
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keysArray, valuesArray, outputKeys, outputValues, VTKM_DEFAULT_DEVICE_ADAPTER_TAG());
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CheckAverageByKey(outputKeys, outputValues);
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}
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void DoTest()
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{
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TryKeyType(vtkm::Id());
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TryKeyType(vtkm::IdComponent());
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TryKeyType(vtkm::UInt8());
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TryKeyType(vtkm::HashType());
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TryKeyType(vtkm::Id3());
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}
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} // anonymous namespace
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int UnitTestAverageByKey(int, char* [])
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{
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return vtkm::cont::testing::Testing::Run(DoTest);
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}
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